Very low power/Voltage cmos sram 512K X 8 bit Very low power/Voltage cmos sram 512K X 8 bit 非常低功电压cmos sram的为512k × 8 low Current Operation at 250??A???low Reverse Leakage,low Noise Zener Diode(250??A?・¥?????μ?μ?????°????????????μ?μ?????????a?£°???é???o3?o???????) Asynchronous 4M(512Kx8) bits Static RAM